GE Power Management 750/760 Feeder Management Relay 17-
1
17 COMMISSIONING 17.1 OVERVIEW
17
17 COMMISSIONING 17.1 OVERVIEW 17.1.1 DESCRIPTION
The following procedures can be used to verify the proper operation of the 750 and/or 760 Feeder Manage-
ment Relay
®
. Although not a total functional verification, the tests in this chapter check the major operating
points. Before commissioning the relay, users should read Chapter 3: INSTALLATION which provides impor-
tant information about wiring, mounting, and safety concerns. One should also become familiar with the relay
as described in Chapters 2: GETTING STARTED and 7: SETPOINTS.
17.1.2 REQUIREMENTS
The test procedures outlined in this section are for field verification that the relay is operational and pro-
grammed as required for the application.
It is not necessary to field test every characteristic of every relay feature. The various features are imple-
mented in software, which is thoroughly tested at the factory. Our recommendation is to field test all of the
input, display, and output hardware, and features which are to be operational in the specific application.
The setpoints which must be addressed for the measurement of every parameter and the operation of every
feature are shown on the logic diagrams. All settings must be set to the application requirement by the user
before beginning the tests.
To facilitate testing it is recommended that all functions be initially set to Dis-
abled. Every feature which will be used in the application should be set to the required function for the
test, then returned to Disabled at completion. Each feature can then be testing without complications
caused by operations of other features. At the completion of all tests each feature is then set as
required.
The procedures for testing of common operations will not be repeated in every test. The common features, and
the test procedure location are as follows:
Thermal Exponential Demand Characteristic Measurement of Current Demand
Block Interval Demand Characteristic Measurement of Current Demand
Rolling Interval Demand Characteristic Measurement of Current Demand
Feature Function as 'Trip' Phase Time Overcurrent 1
Feature Function as 'Alarm' Phase Time Overcurrent 1
Feature Function as 'Control' Phase Time Overcurrent 1
Fixed Delay Timing Phase Time Overcurrent 1
Front Panel RESET Key Resetting Phase Time Overcurrent 1
Logic Input Resetting Phase Time Overcurrent 1
Feature Blocking from Logic Inputs Phase Time Overcurrent 1
Element Operation of Output Relays Phase Time Overcurrent 1
Number Of Faulted Phases Phase Instantaneous Overcurrent 1
Feature Function as 'Trip + AR' Autoreclose (760 Only)
We also recommend that the procedures outlined in Section 17.10: PLACING THE RELAY IN SERVICE on
page 17–74 be performed for all installations to verify proper operation and function of the equipment.
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